babelrc-rollup

Builds a Babel configuration for rollup-plugin-babel by reading a .babelrc file. Current stable version is 3.0.0 (August 2016, no recent updates). It simplifies Rollup integration by automatically converting presets to Rollup-compatible versions (e.g., es2015 → es2015-rollup) and adding the external-helpers plugin. Unlike manual configuration, it reads .babelrc and handles preset option passing (array syntax) for Babel v6.13+. Key differentiator: removes manual setup for Rollup+Babel, but is largely superseded by Rollup's built-in Babel handling.